MULTIMEDIA AND QUALITY OF SERVICE
MULTIMEDIA IN THE INTERNET
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is correct?
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Analog audio-refers to the original sound signalDigital audio-refers to the digital sampling of the actual sound
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Analog audio-refers to the digital sampling of the actual soundDigital Audio-refers to the original sound signal
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Audio signals are the representation of sound, which is in the form of digital and analog signals. Their frequencies range between 20 to 20, 000 Hz, and this is the lower and upper limit of our ears. Analog signals occur in electrical signals, while digital signals occur in binary representations.
Detailed explanation-2: -When audio signals are digitized, the sound waves look like sets of stairs rather than smooth curves, creating or adding digital noise. Analog sound recordings are much smoother. However, there can still be occasional cracking and/or popping noises due to imperfect recordings onto vinyl or tapes.
There is 1 question to complete.